<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    'use strict';
    let student = 'zjj';
    //使用tab上面和esc下面那个字符搞长字符串
    let longshit = `nihao
    wojiaozjj
    wojinnian5suile`;
    //el表达式
    let shitty =`我爱你，${student}`;

</script>
</body>
</html>